evaluation of salt tolerance in iranian rice genotypes on the base of tolerance

in this study, 40 genotypes and breeding lines in the vegetative stage was conducted in a factorial arrangement based on a complete randomized block design with 3 replications in greenhouse at sari university agricultural science and natural resource, iran, 2008. seventeen genotypes were selected and tested in seedling stage in 2009. the results showed that genotypes had significant difference for all traits. gmp and sti were suitable indices to ensure good stability and performance evaluation of genotypes in stress conditions. results of correlation analysis showed that mp, gmp, mh and sti had high significantly with yield in non stress and stress conditions. factor analysis showed that 4 factors explain 86.89% of variation in seedling stage.